The short answer is no - if you introduce books in a way that connects to your store's existing identity. The risk is not in carrying books; it is in dropping books into your store without context, as if they appeared by accident.
Why Books Work Across Categories
Books are one of the few product categories that can sit credibly alongside almost any other retail category - because books exist about nearly every topic imaginable. A yoga store that carries books about yoga practice is not a confused store. It is a complete one. A music store that carries books about music history and theory is deeper and more interesting, not scattered.
The 65% of US adults who read at least one print book per year are not a different species from your existing customers. In most cases, they are the same people. Adding books gives them another reason to buy from you and another reason to return.
As one merchant put it: "Even though my store doesn't specialize in books, it's awesome to be able to supplement our inventory with books on topics relevant to our area."
Where Confusion Happens - And How to Avoid It
Customers do not get confused by books appearing in a store. They get confused when the books feel unrelated to the store's purpose.
Confusing: A camping gear store that adds a collection of literary fiction novels with no connection to outdoor life.
Natural: A camping gear store that adds books about wilderness survival, outdoor cooking, trail guides, and nature writing.
The rule is simple: every book in your store should be explainable to your customer in one sentence. "We carry books about topics our customers love" is a sentence. "We carry all kinds of books because they make money" is not a customer-facing rationale.
How to Introduce Books Without Disruption
Create a named collection
Label the collection something that signals intentionality: "Books We Love," "The Reading List," or "[Your Store Name] Recommends." A named collection communicates that the books were curated, not randomly added.
Write a brief introduction on the collection page
Two to three sentences explaining why these books belong in your store. This is the same principle as a physical bookstore's shelf talkers - a brief human voice that contextualizes the selection.
Feature books as complements, not competitors
On product pages for your core products, cross-reference relevant books. A yoga mat product page could include: "Also worth reading: 'Light on Yoga' by B.K.S. Iyengar." This is natural, helpful, and invisible in terms of brand disruption.
Do not lead with books on your homepage
Keep your primary products front and center on the homepage. Books as a secondary collection - "Also in our store" or featured in a bottom section - avoids the impression that your store's identity has shifted.
The Bottom Line
Books enhance, they do not disrupt. The only version of "confusion" that is worth worrying about is easily solved by curating on-topic books and giving the collection a clear, intentional name.